Lee Junhyung, Kim Minju
University of Guelph, Department of Animal Biosciences, Guelph, ON N1G 2W1, Canada.
School of Animal Life Convergence Science, Hankyong National University, Ansung 17579, Korea.
J Anim Sci Technol. 2025 Jul;67(4):805-816. doi: 10.5187/jast.2024.e43. Epub 2025 Jul 31.
This trial aimed to investigate the bioavailability of copper, iron, zinc, manganese, and selenium in nano, organic, and common inorganic forms. At d 15 of age, a total of 480 birds, one-day-old Ross 308 males, were used in the current trial and housed in metabolic cages for chickens. All birds were randomly arranged according to their body weight (436 ± 23 g) and allotted to 8 experimental diets in a completely randomized design. There were 12 replicates in each diet group with 5 birds per replicate. The experimental diets consisted of 7 diets, containing corn, soybean meal (SBM), corn gluten meal (CGM), fish meal, inorganic premix, organic premix, and nano-premix. There was a higher apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of copper in corn compared with SBM, CGM, and fish meal ( < 0.01). An increase in AID of iron was observed in broiler chickens fed corn and fish meal, however, the highest SID of iron was observed in chickens fed fish meal ( < 0.01). Moreover, the SID of iron was higher in chickens fed corn compared with SBM and CGM. The AID and SID of zinc in CGM treatment were higher than the SBM. An increase in AID of manganese was observed in broiler chickens fed fish meal compared with the CGM and SBM, however, the highest SID of manganese was observed in chickens fed CGM ( < 0.01). There was the highest AID and SID of selenium in chickens fed fish meal compared with SBM, CGM, and fish meal ( < 0.01). Moreover, the SID of selenium was higher in chickens fed CGM compared with SBM and corn. The AID and SID of copper, iron, zinc, manganese, and selenium were higher ( < 0.01) in the nano- and organic forms compared with the inorganic form. In conclusion, fish meal showed a higher bioavailability of iron, manganese, and selenium compared with CGM and SBM. Moreover, the nano-minerals showed a similar bioavailability compared with the organic form.
本试验旨在研究纳米态、有机态和普通无机态铜、铁、锌、锰及硒的生物利用度。在15日龄时，本试验共使用了480只1日龄罗斯308雄性雏鸡，并将其饲养在鸡代谢笼中。所有雏鸡均按体重（436±23克）随机分组，并以完全随机设计分配到8种试验日粮中。每个日粮组有12个重复，每个重复5只鸡。试验日粮包括7种日粮，含有玉米、豆粕（SBM）、玉米蛋白粉（CGM）、鱼粉、无机预混料、有机预混料和纳米预混料。与豆粕、玉米蛋白粉和鱼粉相比，玉米中铜的表观回肠消化率（AID）和标准回肠消化率（SID）更高（<0.01）。在饲喂玉米和鱼粉的肉鸡中观察到铁的AID增加，然而，在饲喂鱼粉的鸡中观察到铁的最高SID（<0.01）。此外，与豆粕和玉米蛋白粉相比，饲喂玉米的鸡中铁的SID更高。CGM处理组锌的AID和SID高于豆粕。与玉米蛋白粉和豆粕相比，在饲喂鱼粉的肉鸡中观察到锰的AID增加，然而，在饲喂玉米蛋白粉的鸡中观察到锰的最高SID（<0.01）。与豆粕、玉米蛋白粉和鱼粉相比，饲喂鱼粉的鸡中硒的AID和SID最高（<0.01）。此外，与豆粕和玉米相比，饲喂玉米蛋白粉的鸡中硒的SID更高。与无机态相比，纳米态和有机态铜、铁、锌、锰及硒的AID和SID更高（<0.01）。总之，与玉米蛋白粉和豆粕相比，鱼粉中铁、锰和硒的生物利用度更高。此外，纳米矿物质与有机态相比显示出相似的生物利用度。
